> Instead of writing an opinion piece that will likely influence a few people, why doesn't this guy use his exemplary knowledge of Facebook and the stock market

> Instead of writing an opinion piece that will likely influence a few people, why doesn't this guy use his exemplary knowledge of Facebook and the stock market for profit? Why not keep this information to himself and short $fb or sell the information to an institutional investor? Couldn't the same be said for anyone giving financial advice. (Note, this isn't necessarily a defense of those who do. :)